Citrix Hypervisor Security Update

2021-06-2311:06:42

support.citrix.com

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS

0.001

Percentile

19.0%

JSON

Two security issues have been identified in Citrix Hypervisor 8.2 LTSR, each of which may allow privileged code in a guest VM to cause the host to crash or become unresponsive. These issues only affect Citrix Hypervisor 8.2 LTSR.
These issues have the following CVE identifiers:

CVE-2021-3416
CVE-2021-20257
CVE ID| Description| Pre-conditions
—|—|—
CVE-2021-3416| privileged code in a guest VM may cause the host to crash or become unresponsive| must be able to execute privileged code in the guest VM
CVE-2021-20257| privileged code in a guest VM may cause the host to crash or become unresponsive| must be able to execute privileged code in the guest VM